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Fig. 1 | BMC Medical Imaging

Fig. 1

From: A sinogram denoising algorithm for low-dose computed tomography

Fig. 1

Two typical one-dimensional profiles of the noisy and denoised projections simulated from the Shepp-Logan phantom. The thin blue curve in each plot shows the corresponding noise-free projection. The left column is for the high-noise case and the right column is for the low-noise case. a the noisy sinogram, b denoised using bilateral filtering, c denoised with NL-PCA, and d denoised with the proposed TV-based algorithm

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